Explain the fundamental concepts in determining the significance of the difference between means.

Fundamental Concepts in Determining the Significance of the Difference between Means –

1 Null Hypothesis
2 Standard Error
3 Degrees of Freedom
4 Level of Significance
5 Two Tailed and One Tailed Tests of Significance
6 Errors in Making Inferences

1 Null hypothesis – It is a useful tool in testing the importance of differences. The null hypothesis claims that there is no real difference between the two population instruments, and the difference found between the sample means are therefore accidental or unimportant (Garrett 1981). During _____ ________ _______ _______ ___ _____ _________ _________ ________ ______ __________.
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